WO2020031388A1 - Terminal utilisateur et procédé de communication sans fil - Google Patents

Terminal utilisateur et procédé de communication sans fil Download PDF

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Publication number
WO2020031388A1
WO2020031388A1 PCT/JP2018/030151 JP2018030151W WO2020031388A1 WO 2020031388 A1 WO2020031388 A1 WO 2020031388A1 JP 2018030151 W JP2018030151 W JP 2018030151W WO 2020031388 A1 WO2020031388 A1 WO 2020031388A1
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WIPO (PCT)
Prior art keywords
signal
reception
ssb
csi
reference signal
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PCT/JP2018/030151
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English (en)
Japanese (ja)
Inventor
祐輝 松村
真哉 岡村
浩樹 原田
聡 永田
Original Assignee
株式会社Ｎｔｔドコモ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 株式会社Ｎｔｔドコモ filed Critical 株式会社Ｎｔｔドコモ
Priority to PCT/JP2018/030151 priority Critical patent/WO2020031388A1/fr
Priority to BR112021002325-9A priority patent/BR112021002325A2/pt
Priority to EP18929664.3A priority patent/EP3836668A4/fr
Priority to US17/267,241 priority patent/US11601903B2/en
Priority to JP2020535478A priority patent/JP7285845B2/ja
Priority to CA3108847A priority patent/CA3108847A1/fr
Priority to CN201880098384.1A priority patent/CN112806077A/zh
Publication of WO2020031388A1 publication Critical patent/WO2020031388A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2675—Pilot or known symbols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0628—Diversity capabilities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/26025—Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others

Definitions

  • the present disclosure relates to a user terminal and a wireless communication method in a next-generation mobile communication system.
  • LTE Long Term Evolution
  • LTE-A LTE Advanced, LTE @ Rel. 10, 11, 12, 13
  • LTE @ Rel. 8, 9 LTE @ Rel. 8, 9
  • a user terminal measures a channel state using a predetermined reference signal (or a resource for the reference signal).
  • the reference signal for channel state measurement may be called CSI-RS (Channel ⁇ State ⁇ Information-Reference ⁇ Signal) or the like.
  • E-UTRA Evolved Universal Terrestrial Radio Access
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • a synchronization signal block (SSB: Synchronization Signal Block) is also used.
  • the UE is notified of a timing setting (SMTC: SSB-based ⁇ Measurement ⁇ Timing ⁇ Configuration) related to the measurement using the SSB.
  • SMTC SSB-based ⁇ Measurement ⁇ Timing ⁇ Configuration
  • the UE performs a measurement based on the SSB to be measured (may be referred to as SSB measurement) within the set SMTC window.
  • the measurement using the SSB for example, the transmission timing of the SSB
  • the measurement the transmission timing of the CSI-RS
  • the CSI-RS Channel ⁇ State ⁇ Information-Reference ⁇ Signal
  • the receiving operation of the UE when the SSB and the CSI-RS are transmitted on the same time resource has not been sufficiently studied. If reception of SSB and CSI-RS cannot be controlled appropriately, there is a problem that communication quality deteriorates.
  • an object of the present disclosure is to provide a user terminal and a radio communication method capable of appropriately controlling a reception operation in a UE even when a synchronization signal block and a predetermined reference signal overlap with time resources. I do.
  • a user terminal a receiving unit that receives a synchronization signal block and a predetermined reference signal, and when the synchronization signal block and the predetermined reference signal are set to the same time resource, the synchronization signal block And a control unit that controls reception of the synchronization signal block and the predetermined reference signal based on a pseudo collocation (QCL) relationship of the predetermined reference signal and a subcarrier interval.
  • QCL pseudo collocation
  • the synchronization signal block and the predetermined reference signal overlap with each other in time resources, it is possible to appropriately control the reception operation in the UE.
  • FIG. 1 is a diagram for explaining simultaneous reception of SSB and CSI-RS in NR.
  • 2A and 2B are diagrams illustrating an example of SSB and CSI-RS simultaneous reception in the first example.
  • 3A and 3B are diagrams showing another example of simultaneous reception of SSB and CSI-RS in the first example.
  • 4A and 4B are diagrams showing another example of simultaneous reception of SSB and CSI-RS in the first example.
  • 5A and 5B are diagrams showing another example of simultaneous reception of SSB and CSI-RS in the second example.
  • FIG. 6 is a diagram illustrating an example of a schematic configuration of the wireless communication system according to the present embodiment.
  • FIG. 7 is a diagram showing an example of the overall configuration of the base station according to the present embodiment.
  • FIG. 8 is a diagram showing an example of a functional configuration of the base station according to the present embodiment.
  • FIG. 9 is a diagram showing an example of the overall configuration of the user terminal according to the present embodiment.
  • FIG. 10 is a diagram illustrating an example of a functional configuration of the user terminal according to the present embodiment.
  • FIG. 11 is a diagram illustrating an example of a hardware configuration of the base station and the user terminal according to the present embodiment.
  • a future wireless communication system (hereinafter, NR), communication using beamforming (BF) is being studied.
  • the UE performs at least reception processing (for example, reception, demapping, demodulation, and decoding) on the channel based on the state (TCI state) of the transmission configuration instruction (TCI: Transmission Configuration Indication or Transmission Configuration Indicator) of the channel. 1) is being considered.
  • TCI state the state of the transmission configuration instruction
  • TCI Transmission Configuration Indication or Transmission Configuration Indicator
  • the UE performs at least reception processing (for example, reception, demapping, demodulation, and decoding) for the channel based on the state (TCI state) of the channel's transmission configuration instruction (TCI: Transmission Configuration Indication or Transmission Configuration Indicator). 1) is being considered.
  • reception processing for example, reception, demapping, demodulation, and decoding
  • TCI Transmission Configuration Indication or Transmission Configuration Indicator
  • the TCI state is information on pseudo collocation (QCL: Quasi-Co-Location) of a channel or a signal, and is also called a spatial reception parameter, spatial information (spatial @ info), or the like.
  • the TCI state is assigned to the UE for each channel or signal.
  • the UE may determine at least one of the transmission beam (Tx beam) and the reception beam (Rx beam) of each channel based on the TCI state specified for each channel.
  • QCL is an index indicating the statistical property of at least one of a channel and a signal (channel / signal). For example, when a plurality of channels / signals have a QCL relationship, a Doppler shift (doppler shift), a Doppler spread (doppler spread), an average delay (average delay), a delay spread ( It may mean that it can be assumed that at least one of delay @ spread, spatial parameter (Spatial @ parameter) (e.g., spatial receiving parameter (Spatial @ Rx @ Parameter)) is the same (QCL for at least one of these).
  • spatial parameter spatial parameter
  • spatial receiving parameter Spatial @ Rx @ Parameter
  • the spatial reception parameter may correspond to an Rx beam (for example, a received analog beam) of the user terminal, and the Rx beam may be specified based on the spatial reception parameter.
  • QCL types A plurality of types (QCL types) may be defined for the QCL.
  • QCL types AD QCL types with different parameters (or parameter sets) that can be assumed to be the same may be provided, and are described below.
  • QCL type A Doppler shift, Doppler spread, average delay and delay spread
  • QCL type B Doppler shift and Doppler spread
  • QCL type C Doppler shift and average delay
  • QCL type D spatial reception parameters.
  • the QCL information for each channel may include (or indicate) at least one of the following information: Information indicating the QCL type (QCL type information); Information on a reference signal (RS: Reference Signal) having a QCL relationship with each channel (RS information); Information indicating a carrier (cell) where the RS is located; Information indicating a bandwidth part (BWP: Bandwidth Part) in which the RS is located; Information indicating a spatial reception parameter (for example, Rx beam) of each channel.
  • Information indicating the QCL type QCL type information
  • RS Reference Signal
  • RS information Reference Signal having a QCL relationship with each channel
  • RS information Information indicating a carrier (cell) where the RS is located
  • BWP Bandwidth Part
  • Information indicating a spatial reception parameter for example, Rx beam
  • the SSB is a signal block including at least one of a primary synchronization signal (PSS: Primary Synchronization Signal), a secondary synchronization signal (SSS: Secondary Synchronization Signal), and a broadcast channel (PBCH: Physical Broadcast Channel).
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • PBCH Broadcast Channel
  • the UE performs a measurement based on the SSB to be measured (may be referred to as SSB measurement) within the SMTC window based on a timing setting (SMTC: SSB-based ⁇ Measurement ⁇ Timing ⁇ Configuration) related to the measurement using the SSB. .
  • SSB measurement a measurement based on the SSB to be measured
  • SMTC SSB-based ⁇ Measurement ⁇ Timing ⁇ Configuration
  • the measurement using the SSB for example, the transmission timing of the SSB
  • the measurement using the CSI-RS the transmission timing of the CSI-RS
  • the receiving operation of the UE when the SSB and the CSI-RS are transmitted on the same time resource has not been sufficiently studied. If reception of SSB and CSI-RS cannot be controlled appropriately, there is a problem that communication quality deteriorates.
  • the operation of the UE when the UE receives the SSB and the CSI-RS at the same time is being studied.
  • the UE receives SSB and CSI-RS at the same time the following problems are raised.
  • that the UE receives the SSB and the CSI-RS at the same time means that the UE receives the SSB and the CSI-RS that at least partially overlap in the time resources (for example, symbols).
  • SSB and CSI-RS of the same symbol are beams other than QCL type D (TCI State), and when the UE can form only one receive beam, it cannot receive SSB and CSI-RS simultaneously.
  • SSB and CSI-RS may have different SCS (subcarrier interval, numerology). This is because an advanced receiver must be used in order for the SCS to simultaneously receive two different reference signals, and whether simultaneous reception is possible depends on the performance of the UE.
  • the present inventors focus on the pseudo-colocation relationship between the SSB and the CSI-RS and the subcarrier interval, and provide a method for appropriately controlling the reception process when the SSB and the CSI-RS are set to the same time resource. Investigations have led to the present invention.
  • One aspect of the present invention is to receive a synchronization signal block and a predetermined reference signal, and when the synchronization signal block and the predetermined reference signal are set to the same time resource, the synchronization signal block and the predetermined reference signal
  • a user terminal that controls reception of the synchronization signal block and the predetermined reference signal based on a pseudo collocation (QCL) relationship and a subcarrier interval.
  • QCL pseudo collocation
  • a UE in which SSB and CSI-RS are set to the same symbol operates as follows.
  • the TCI states of the SSB and the CSI-RS are equal (QCL type D) or when the analog beam is not applied (the first frequency band (FR1: Frequency Range 1), etc.)
  • the SSB and the CSI-RS UE operation may be different when the TCI state of the RS is different (not QCL type D).
  • the UE operation is further different between the case where the SCS of the SSB and the CSI-RS are equal and the case where the SCS of the SSB and the CSI-RS are different.
  • the expression that the TSB states of the SSB and the CSI-RS are equal may be read as that the SSB and the CSI-RS have a predetermined pseudo collocation relationship (QCL type D).
  • the UE receives the SSB and the CSI-RS simultaneously. Thereby, communication can be controlled using both SSB and CSI-RS without increasing the reception load of the reception process of the UE. As a result, communication throughput or communication quality can be improved.
  • the UE operation may be set differently depending on the presence / absence of the capability of simultaneous reception of the SSB and the CSI-RS (or the presence / absence of a report) as follows. 1) If the UE reports that it supports simultaneous reception capability, the UE receives SSB and CSI-RS simultaneously. Thereby, simultaneous reception of SSB and CSI-RS having different SCSs according to the capability of the UE can be flexibly controlled for each UE. 2) If the UE reports that it does not support simultaneous reception capability, the UE does not receive SSB and CSI-RS simultaneously. As a result, it is possible to suppress an increase in the load of the reception processing of the UE. 3) If the UE does not report simultaneous reception capability, the UE does not receive SSB and CSI-RS simultaneously. As a result, it is possible to suppress an increase in the load of the reception processing of the UE.
  • the UE may receive only the SSB, only the CSI-RS, or neither the SSB nor the CSI-RS (or may not receive the SSB and the CSI-RS). 1) Perform any of the operations.
  • the UE operation may be further different between the case where the SCS of the SSB and the CSI-RS are equal and the case where the SCS of the SSB and the CSI-RS are different.
  • the UE does not receive the SSB and the CSI-RS at the same time. With this setting, it is possible to suppress reception errors in UEs that do not support reception of multiple beams. Note that, in a second mode described later, the UE that has reported the multi-beam UE ⁇ ⁇ ⁇ capability may be set to receive the SSB and the CSI-RS simultaneously.
  • the UE when the SCS of the SSB and the CSI-RS set to overlap with the time resource are different, the UE does not receive the SSB and the CSI-RS at the same time. As a result, it is possible to suppress an increase in the load of the reception processing of the UE.
  • the UE that has reported the capability of simultaneous reception of different SCSs described above may be set to receive SSB and CSI-RS simultaneously.
  • the UE may receive only the SSB when many operations using the SSB are set. Further, the UE may receive only the CSI-RS when a large number of operations using the CSI-RS are set. Also, the UE does not have to receive any information when the SSB and the CSI-RS are configured to be duplicated in the same time resource. As a result, it is possible to reduce the load of the receiving process (such as selection of a received signal) on the UE side.
  • the time resource in which the SSB and the CSI-RS are set may be any of the following. That is, as shown in FIGS. 2A and 2B, the CSI-RS of at least one symbol may be set so as to overlap in the same symbol as the SSB.
  • the CSI-RS of at least one symbol may be set so that the CSI-RS of at least one symbol is included in the SSB measurement window (SMTC window).
  • the CSI-RS of at least one symbol may be set so as to be included in the measurement gap (Measurement GAP) of the SSB.
  • a predetermined symbol for example, one symbol
  • the target symbol such as several symbols for beam switching, may be included.
  • the rule (the SSB and the CSI-RS are simultaneously set). Receiving or not receiving) may be applied. By making such settings, the UE can measure as many CSI-RSs and SSs as possible, so that it is possible to improve beam measurement and measurement accuracy of channel state information. This enables high-precision beam switching and high-quality communication using high-precision channel information.
  • the UE when CSI-RS and SSB are within the measurement window, within the measurement gap, and CSI-RS and SSB are the same symbol, the UE does not receive CSI-RS and SSB simultaneously ( This shows a case where a CSI-RS is set but the signal does not need to be received), but a CSI-RS of a symbol different from the SSB is received.
  • the rule (the SSB and the CSI-RS may be changed). (Receive or not receive at the same time) applies.
  • the UE does not need to frequently switch beams to measure both CSI-RS and SS, so that the operation of the UE can be simplified and the power consumption lost due to beam switching can be reduced. Can be smaller.
  • the UE when the CSI-RS and the SSB are within the measurement window, within the measurement gap, and when at least one symbol of the CSI-RS and the SSB is the same symbol, the UE simultaneously transmits the CSI-RS and the SSB.
  • a case is shown in which no CSI-RS is received (the CSI-RS is set but not received) and the CSI-RS of a symbol different from the SSB is not received.
  • This operation is an operation in which the UE operation is omitted in consideration of occurrence of beam switching.
  • the UE may receive the CSI-RS set outside the measurement window of the SSB or outside the measurement gap.
  • a CSI-RS outside the measurement window of the SSB may be received.
  • FIG. 4B when at least some CSI-RSs and SSBs do not receive simultaneously when the same symbol is used, CSI-RSs outside the measurement window of the SSB may be received.
  • the UE reports whether the UE can simultaneously receive multiple beams to the network with UE capability, and the UE that reports that it can receive multiple beams simultaneously transmits SSB and CSI-RS regardless of whether it is QCL type D or not. You may set so that it may receive simultaneously.
  • a UE having a predetermined UE capability can simultaneously receive SSB and CSI-RS.
  • a UE that does not report this Capability may be set to perform the same operation as a UE that has reported that it cannot receive a plurality of beams simultaneously. It should be noted that whether or not the UE can simultaneously receive a plurality of beams may be reported in one bit by UE capability, and when the UE can simultaneously receive a plurality of beams, it may be reported how many beams can be supported. good.
  • the assumed scenario is a case where the UE supports digital beams, as shown in FIG. 5A.
  • the digital beam is a method of performing precoding signal processing on a baseband (for a digital signal).
  • parallel processing of inverse fast Fourier transform (IFFT: Inverse Fast Fourier Transform) / digital-analog conversion (DAC: Digital to Analog Converter) / RF (Radio Frequency) is required only for the number of antenna ports (RF chains).
  • IFFT Inverse Fast Fourier Transform
  • DAC Digital to Analog Converter
  • RF Radio Frequency
  • beams can be formed in a number corresponding to the number of RF @ chain.
  • a scenario assumed is a case where the UE supports multi-panel, as shown in FIG. 5B.
  • the priority may be changed according to what purpose the SSB and CSI-RS are used for. By setting in this manner, operations that are more important for communication can be preferentially performed, so that deterioration of communication quality can be suppressed.
  • RRM Radio Resource Management
  • L3 measurement RLM (Radio Link Monitoring)
  • BFD Beam Failure Detection
  • BM Beam Management
  • L1 RSRP Reference Signal Received Power, Reference RQ
  • SINR Signal to Interference plus Noise Ratio
  • CSI measurement and the like.
  • the configuration may be such that the reference signal for RRM has a lower priority than the CSI-RS even if it is an SSB, and the reference signal for BM or the reference signal for RLM is received with priority.
  • beam management can be appropriately performed in wireless communication, and thus it can be suitably applied to a communication system using beams.
  • the priority may be determined according to the use of the reference signal instead of SSB or CSI-RS.
  • the UE may be configured to receive a reference signal for a high-priority use, and not to receive any other reference signal in a symbol that is the same as or before and after the symbol of the reference signal.
  • CSI measurement RRM (L3 measurement)
  • SSB> CSI-RS or CSI-RS> SSB may be satisfied.
  • the UE can receive the reference signal preferentially in a cell having a high priority in communication, so that it is possible to suppress a decrease in quality of more important communication.
  • the method of determining the priority includes SSB and CSI-RS (for example, SSB> CSI-RS), use of the above-mentioned reference signal, cell type (for example, Pcell> PSCell> SCell), and cell index (for example, the @ lowest @ CC).
  • the index may be prioritized or the largest ⁇ CC ⁇ index may be prioritized), the frequency band of the cell (for example, FR1> FR2, FR2> FR1) or the like may be considered.
  • FR1 may be, for example, a frequency band of 6 GHz or less (sub-6 GHz (sub-6 GHz)), and FR2 may be a frequency band higher than 24 GHz (above-24 GHz).
  • FR1 may be defined as a frequency range in which at least one of 15, 30, and 60 kHz is used as a sub-carrier interval (SCS: Sub-Carrier Spacing), and FR2 is at least one of 60 and 120 kHz as SCS.
  • SCS sub-carrier Spacing
  • One may be defined as the frequency range used.
  • the frequency bands and definitions of FR1 and FR2 are not limited to these, and for example, FR1 may be a higher frequency band than FR2.
  • FR2 may be used only for a time division duplex (TDD: Time Division Duplex) band.
  • FR2 is preferably operated synchronously between a plurality of base stations.
  • TDD Time Division Duplex
  • FR2 includes a plurality of carriers, it is preferable that these carriers be operated synchronously.
  • wireless communication system Wireless communication system
  • communication is performed using any of the wireless communication methods according to the above embodiments of the present disclosure or a combination thereof.
  • FIG. 6 is a diagram showing an example of a schematic configuration of the wireless communication system according to the present embodiment.
  • carrier aggregation (CA) and / or dual connectivity (DC) in which a plurality of basic frequency blocks (component carriers) each having a unit of a system bandwidth (for example, 20 MHz) of an LTE system are applied. can do.
  • DC dual connectivity
  • the wireless communication system 1 includes LTE (Long Term Evolution), LTE-A (LTE-Advanced), LTE-B (LTE-Beyond), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), and 5G. (5th generation mobile communication system), NR (New Radio), FRA (Future Radio Access), New-RAT (Radio Access Technology), etc., or a system for realizing these.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • LTE-B LTE-Beyond
  • SUPER 3G IMT-Advanced
  • 4G 4th generation mobile communication system
  • 5G 5th generation mobile communication system
  • NR New Radio
  • FRA Full Radio Access
  • New-RAT Radio Access Technology
  • the wireless communication system 1 includes a base station 11 forming a macro cell C1 having relatively wide coverage, and a base station 12 (12a to 12c) arranged in the macro cell C1 and forming a small cell C2 smaller than the macro cell C1.
  • a base station 11 forming a macro cell C1 having relatively wide coverage
  • a base station 12 (12a to 12c) arranged in the macro cell C1 and forming a small cell C2 smaller than the macro cell C1.
  • user terminals 20 are arranged in the macro cell C1 and each small cell C2.
  • the arrangement, number, and the like of each cell and the user terminals 20 are not limited to the modes shown in the figure.
  • the user terminal 20 can be connected to both the base station 11 and the base station 12. It is assumed that the user terminal 20 uses the macro cell C1 and the small cell C2 simultaneously using CA or DC. Further, the user terminal 20 may apply CA or DC using a plurality of cells (CC).
  • CC a plurality of cells
  • Communication between the user terminal 20 and the base station 11 can be performed using a carrier having a relatively low frequency band (for example, 2 GHz) and a narrow bandwidth (also referred to as an existing carrier or a legacy carrier).
  • a carrier having a relatively high frequency band for example, 3.5 GHz, 5 GHz, or the like
  • a wide bandwidth may be used, or between the user terminal 20 and the base station 11.
  • the same carrier as described above may be used. Note that the configuration of the frequency band used by each base station is not limited to this.
  • the user terminal 20 can perform communication using time division duplex (TDD: Time Division Duplex) and / or frequency division duplex (FDD: Frequency Division Duplex) in each cell.
  • TDD Time Division Duplex
  • FDD Frequency Division Duplex
  • a single numerology may be applied, or a plurality of different numerologies may be applied.
  • Numerology may be a communication parameter applied to transmission and / or reception of a certain signal and / or channel, for example, subcarrier interval, bandwidth, symbol length, cyclic prefix length, subframe length. , TTI length, number of symbols per TTI, radio frame configuration, specific filtering processing performed by the transceiver in the frequency domain, specific windowing processing performed by the transceiver in the time domain, and the like.
  • the numerology may be referred to as different.
  • the base station 11 and the base station 12 may be connected by wire (for example, an optical fiber or an X2 interface compliant with CPRI (Common Public Radio Interface)) or wirelessly. Good.
  • wire for example, an optical fiber or an X2 interface compliant with CPRI (Common Public Radio Interface)
  • CPRI Common Public Radio Interface
  • the base station 11 and each base station 12 are respectively connected to the upper station apparatus 30, and are connected to the core network 40 via the upper station apparatus 30.
  • the higher station apparatus 30 includes, for example, an access gateway apparatus, a radio network controller (RNC), a mobility management entity (MME), and the like, but is not limited thereto.
  • RNC radio network controller
  • MME mobility management entity
  • each base station 12 may be connected to the higher station apparatus 30 via the base station 11.
  • the base station 11 is a base station having relatively wide coverage, and may be called a macro base station, an aggregation node, an eNB (eNodeB), a transmission / reception point, or the like.
  • the base station 12 is a base station having local coverage, such as a small base station, a micro base station, a pico base station, a femto base station, a HeNB (Home eNodeB), an RRH (Remote Radio Head), and a transmission / reception point. May be called.
  • a base station 10 when the base stations 11 and 12 are not distinguished, they are collectively referred to as a base station 10.
  • Each user terminal 20 is a terminal corresponding to various communication systems such as LTE and LTE-A, and may include not only mobile communication terminals (mobile stations) but also fixed communication terminals (fixed stations).
  • orthogonal frequency division multiple access Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single Carrier
  • Frequency Division Multiple Access Frequency Division Multiple Access
  • / or OFDMA is applied.
  • OFDMA is a multicarrier transmission scheme in which a frequency band is divided into a plurality of narrow frequency bands (subcarriers), and data is mapped to each subcarrier for communication.
  • SC-FDMA divides a system bandwidth into bands each composed of one or a continuous resource block for each terminal, and a single carrier transmission that reduces interference between terminals by using different bands for a plurality of terminals. It is a method.
  • the uplink and downlink radio access schemes are not limited to these combinations, and other radio access schemes may be used.
  • a downlink shared channel (PDSCH: Physical Downlink Shared Channel), a broadcast channel (PBCH: Physical Broadcast Channel), a downlink L1 / L2 control channel and the like shared by each user terminal 20 are used. Used.
  • the PDSCH transmits user data, upper layer control information, SIB (System @ Information @ Block), and the like. Also, MIB (Master ⁇ Information ⁇ Block) is transmitted by PBCH.
  • SIB System @ Information @ Block
  • MIB Master ⁇ Information ⁇ Block
  • Downlink L1 / L2 control channels include PDCCH (Physical Downlink Control Channel), EPDCCH (Enhanced Downlink Control Channel), PCFICH (Physical Control Format Indicator Channel), PHICH (Physical Hybrid-ARQ Indicator Channel) and the like.
  • Downlink control information (DCI: Downlink Control Information) including scheduling information of PDSCH and / or PUSCH is transmitted by PDCCH.
  • the DCI that schedules DL data reception may be called a DL assignment
  • the DCI that schedules UL data transmission may be called an UL grant.
  • PCFICH transmits the number of OFDM symbols used for PDCCH.
  • the PHICH transmits HARQ (Hybrid Automatic Repeat Repeat request) acknowledgment information (for example, retransmission control information, HARQ-ACK, ACK / NACK, etc.) for the PUSCH.
  • HARQ Hybrid Automatic Repeat Repeat request
  • the EPDCCH is frequency-division multiplexed with a PDSCH (Downlink Shared Data Channel) and used for transmission of DCI and the like like the PDCCH.
  • PDSCH Downlink Shared Data Channel
  • an uplink shared channel (PUSCH: Physical Uplink Shared Channel), an uplink control channel (PUCCH: Physical Uplink Control Channel), a random access channel (PRACH: Physical Random Access Channel) or the like is used.
  • PUSCH Physical Uplink Shared Channel
  • PUCCH Physical Uplink Control Channel
  • PRACH Physical Random Access Channel
  • user data higher layer control information, etc. are transmitted.
  • downlink radio quality information CQI: Channel Quality Indicator
  • acknowledgment information acknowledgment information
  • scheduling request (SR: Scheduling Request), and the like are transmitted by PUCCH.
  • the PRACH transmits a random access preamble for establishing a connection with a cell.
  • a cell-specific reference signal CRS
  • CSI-RS channel state information reference signal
  • DMRS demodulation reference signal
  • PRS Positioning Reference Signal
  • a reference signal for measurement SRS: Sounding Reference Signal
  • DMRS reference signal for demodulation
  • the DMRS may be called a user terminal specific reference signal (UE-specific Reference Signal). Further, the transmitted reference signal is not limited to these.
  • FIG. 7 is a diagram showing an example of the overall configuration of the base station according to the present embodiment.
  • the base station 10 includes a plurality of transmitting / receiving antennas 101, an amplifier unit 102, a transmitting / receiving unit 103, a baseband signal processing unit 104, a call processing unit 105, and a transmission path interface 106.
  • the transmitting / receiving antenna 101, the amplifier unit 102, and the transmitting / receiving unit 103 may be configured to include at least one each.
  • the baseband signal processing unit 104 regarding user data, processing of a PDCP (Packet Data Convergence Protocol) layer, division / combination of user data, transmission processing of an RLC layer such as RLC (Radio Link Control) retransmission control, and MAC (Medium Access) Control) Transmission / reception control (for example, HARQ transmission processing), scheduling, transmission format selection, channel coding, inverse fast Fourier transform (IFFT) processing, precoding processing, etc., and transmission / reception processing are performed.
  • RLC Radio Link Control
  • MAC Medium Access
  • Transmission / reception control for example, HARQ transmission processing
  • scheduling transmission format selection, channel coding, inverse fast Fourier transform (IFFT) processing, precoding processing, etc.
  • IFFT inverse fast Fourier transform
  • the transmission / reception section 103 converts the baseband signal pre-coded and output from the baseband signal processing section 104 for each antenna into a radio frequency band, and transmits the radio frequency band.
  • the radio frequency signal frequency-converted by the transmitting / receiving section 103 is amplified by the amplifier section 102 and transmitted from the transmitting / receiving antenna 101.
  • the transmission / reception unit 103 can be configured by a transmitter / receiver, a transmission / reception circuit, or a transmission / reception device described based on common recognition in the technical field according to the present disclosure. Note that the transmission / reception unit 103 may be configured as an integrated transmission / reception unit, or may be configured from a transmission unit and a reception unit.
  • a radio frequency signal received by the transmission / reception antenna 101 is amplified by the amplifier unit 102.
  • the transmitting / receiving section 103 receives the upstream signal amplified by the amplifier section 102.
  • Transmitting / receiving section 103 frequency-converts the received signal into a baseband signal and outputs the baseband signal to baseband signal processing section 104.
  • the baseband signal processing unit 104 performs fast Fourier transform (FFT: Fast Fourier Transform), inverse discrete Fourier transform (IDFT), and error correction on user data included in the input uplink signal. Decoding, reception processing of MAC retransmission control, reception processing of the RLC layer and PDCP layer are performed, and the data is transferred to the upper station apparatus 30 via the transmission path interface 106.
  • the call processing unit 105 performs call processing (setting, release, etc.) of a communication channel, state management of the base station 10, management of radio resources, and the like.
  • the transmission path interface 106 transmits and receives signals to and from the higher-level station device 30 via a predetermined interface.
  • the transmission line interface 106 transmits and receives signals (backhaul signaling) to and from another base station 10 via an interface between base stations (for example, an optical fiber compliant with CPRI (Common Public Radio Interface), an X2 interface). Is also good.
  • the transmitting and receiving unit 103 may further include an analog beamforming unit that performs analog beamforming.
  • the analog beamforming unit includes an analog beamforming circuit (for example, a phase shifter, a phase shift circuit) or an analog beamforming device (for example, a phase shifter) described based on common recognition in the technical field according to the present invention. May be.
  • the transmitting / receiving antenna 101 may be constituted by, for example, an array antenna.
  • the transmitting / receiving section 103 may transmit a downlink shared channel (for example, PDSCH) and a downlink control channel (for example, PDCCH) (downlink control information).
  • a downlink shared channel for example, PDSCH
  • a downlink control channel for example, PDCCH
  • the transmission / reception unit 103 is applied to information on at least one TCI state of the downlink shared channel and the downlink control channel (for example, configuration (configuration) information of the TCI state, information indicating the TCI state to be activated, PDCCH or PDSCH). Or at least one of the information indicating the TCI state of the TCI.
  • FIG. 8 is a diagram showing an example of a functional configuration of the base station according to the present embodiment.
  • functional blocks of characteristic portions in the present embodiment are mainly shown, and it may be assumed that base station 10 also has other functional blocks necessary for wireless communication.
  • the baseband signal processing unit 104 includes at least a control unit (scheduler) 301, a transmission signal generation unit 302, a mapping unit 303, a reception signal processing unit 304, and a measurement unit 305. Note that these configurations need only be included in base station 10, and some or all of the configurations need not be included in baseband signal processing section 104.
  • the control unit (scheduler) 301 controls the entire base station 10.
  • the control unit 301 can be configured from a controller, a control circuit, or a control device described based on common recognition in the technical field according to the present disclosure.
  • the control unit 301 controls, for example, signal generation in the transmission signal generation unit 302, signal assignment in the mapping unit 303, and the like. Further, the control unit 301 controls a signal reception process in the reception signal processing unit 304, a signal measurement in the measurement unit 305, and the like.
  • the control unit 301 performs scheduling (for example, resource transmission) of system information, a downlink data signal (for example, a signal transmitted on the PDSCH), and a downlink control signal (for example, a signal transmitted on the PDCCH and / or the EPDCCH; acknowledgment information and the like). Allocation). Further, control section 301 controls generation of a downlink control signal, a downlink data signal, and the like based on a result of determining whether or not retransmission control is required for an uplink data signal.
  • scheduling for example, resource transmission
  • a downlink data signal for example, a signal transmitted on the PDSCH
  • a downlink control signal for example, a signal transmitted on the PDCCH and / or the EPDCCH; acknowledgment information and the like. Allocation.
  • control section 301 controls generation of a downlink control signal, a downlink data signal, and the like based on a result of determining whether or not retransmission control is required for an uplink data signal.
  • the control unit 301 controls scheduling of synchronization signals (for example, PSS (Primary Synchronization Signal) / SSS (Secondary Synchronization Signal)), SSB, downlink reference signals (for example, CRS, CSI-RS, DMRS).
  • synchronization signals for example, PSS (Primary Synchronization Signal) / SSS (Secondary Synchronization Signal)
  • SSB Downlink reference signals
  • CRS channel reference signals
  • CSI-RS CSI-RS
  • DMRS Downlink reference signals
  • the control unit 301 includes an uplink data signal (for example, a signal transmitted on the PUSCH), an uplink control signal (for example, a signal transmitted on the PUCCH and / or PUSCH, acknowledgment information, etc.), a random access preamble (for example, a PRACH). (Transmission signal), scheduling of uplink reference signals and the like.
  • an uplink data signal for example, a signal transmitted on the PUSCH
  • an uplink control signal for example, a signal transmitted on the PUCCH and / or PUSCH, acknowledgment information, etc.
  • a random access preamble for example, a PRACH.
  • Transmission signal scheduling of uplink reference signals and the like.
  • the control unit 301 controls to form a transmission beam and / or a reception beam using digital BF (for example, precoding) in the baseband signal processing unit 104 and / or analog BF (for example, phase rotation) in the transmission / reception unit 103. May be performed.
  • the control unit 301 may perform control to form a beam based on downlink propagation path information, uplink propagation path information, and the like. These propagation path information may be acquired from the reception signal processing unit 304 and / or the measurement unit 305.
  • Transmission signal generation section 302 generates a downlink signal (downlink control signal, downlink data signal, downlink reference signal, etc.) based on an instruction from control section 301, and outputs the generated signal to mapping section 303.
  • the transmission signal generation unit 302 can be configured from a signal generator, a signal generation circuit, or a signal generation device described based on common recognition in the technical field according to the present disclosure.
  • the transmission signal generation unit 302 generates a DL assignment for notifying downlink data allocation information and / or a UL grant for notifying uplink data allocation information, based on an instruction from the control unit 301, for example.
  • the DL assignment and the UL grant are both DCI and follow the DCI format.
  • the downlink data signal is subjected to an encoding process and a modulation process according to an encoding rate, a modulation scheme, and the like determined based on channel state information (CSI: Channel ⁇ State ⁇ Information) from each user terminal 20 or the like.
  • CSI Channel ⁇ State ⁇ Information
  • Mapping section 303 maps the downlink signal generated by transmission signal generation section 302 to a predetermined radio resource based on an instruction from control section 301, and outputs the result to transmission / reception section 103.
  • the mapping unit 303 can be configured by a mapper, a mapping circuit, or a mapping device described based on common recognition in the technical field according to the present disclosure.
  • the reception signal processing unit 304 performs reception processing (for example, demapping, demodulation, and decoding) on the reception signal input from the transmission / reception unit 103.
  • the received signal is, for example, an uplink signal (uplink control signal, uplink data signal, uplink reference signal, etc.) transmitted from the user terminal 20.
  • the reception signal processing unit 304 can be configured from a signal processor, a signal processing circuit, or a signal processing device described based on common recognition in the technical field according to the present disclosure.
  • the reception signal processing unit 304 outputs the information decoded by the reception processing to the control unit 301. For example, when a PUCCH including HARQ-ACK is received, HARQ-ACK is output to control section 301. Further, the reception signal processing unit 304 outputs the reception signal and / or the signal after the reception processing to the measurement unit 305.
  • the measurement unit 305 performs measurement on the received signal.
  • the measurement unit 305 can be configured from a measurement device, a measurement circuit, or a measurement device described based on common recognition in the technical field according to the present disclosure.
  • the measurement unit 305 may perform RRM (Radio Resource Management) measurement, CSI (Channel State Information) measurement, or the like based on the received signal.
  • Measuring section 305 receives power (for example, RSRP (Reference Signal Received Power)), reception quality (for example, RSRQ (Reference Signal Received Quality), SINR (Signal to Interference plus Noise Ratio), SNR (Signal to Noise Ratio)).
  • Power for example, RSRP (Reference Signal Received Power)
  • reception quality for example, RSRQ (Reference Signal Received Quality), SINR (Signal to Interference plus Noise Ratio), SNR (Signal to Noise Ratio)
  • Signal strength for example, RSSI (Received Signal Strength Indicator)
  • channel information for example, CSI
  • the measurement result may be output to the control unit 301.
  • FIG. 9 is a diagram showing an example of the overall configuration of the user terminal according to the present embodiment.
  • the user terminal 20 includes a plurality of transmitting / receiving antennas 201, an amplifier unit 202, a transmitting / receiving unit 203, a baseband signal processing unit 204, and an application unit 205.
  • the transmitting / receiving antenna 201, the amplifier unit 202, and the transmitting / receiving unit 203 may be configured to include at least one each.
  • the radio frequency signal received by the transmitting / receiving antenna 201 is amplified by the amplifier unit 202.
  • the transmission / reception unit 203 receives the downlink signal amplified by the amplifier unit 202.
  • the transmitting / receiving section 203 converts the frequency of the received signal into a baseband signal and outputs the baseband signal to the baseband signal processing section 204.
  • the transmission / reception unit 203 can be configured from a transmitter / receiver, a transmission / reception circuit, or a transmission / reception device described based on common recognition in the technical field according to the present disclosure. Note that the transmission / reception unit 203 may be configured as an integrated transmission / reception unit, or may be configured from a transmission unit and a reception unit.
  • the baseband signal processing unit 204 performs FFT processing, error correction decoding, reception processing for retransmission control, and the like on the input baseband signal.
  • the downlink user data is transferred to the application unit 205.
  • the application unit 205 performs processing related to layers higher than the physical layer and the MAC layer. Also, of the downlink data, broadcast information may be transferred to the application unit 205.
  • uplink user data is input from the application unit 205 to the baseband signal processing unit 204.
  • the baseband signal processor 204 performs retransmission control transmission processing (eg, HARQ transmission processing), channel coding, precoding, discrete Fourier transform (DFT) processing, IFFT processing, and the like, and performs transmission / reception processing. Transferred to 203.
  • the transmission / reception unit 203 converts the baseband signal output from the baseband signal processing unit 204 into a radio frequency band and transmits the radio frequency band.
  • the radio frequency signal frequency-converted by the transmitting / receiving section 203 is amplified by the amplifier section 202 and transmitted from the transmitting / receiving antenna 201.
  • the transmission / reception unit 203 may further include an analog beamforming unit that performs analog beamforming.
  • the analog beamforming unit includes an analog beamforming circuit (for example, a phase shifter, a phase shift circuit) or an analog beamforming device (for example, a phase shifter) described based on common recognition in the technical field according to the present invention. May be.
  • the transmitting / receiving antenna 201 may be constituted by, for example, an array antenna.
  • the transmitting / receiving section 203 may receive a downlink shared channel (for example, PDSCH) and a downlink control channel (for example, PDCCH) (downlink control information).
  • a downlink shared channel for example, PDSCH
  • a downlink control channel for example, PDCCH
  • the transmission / reception unit 203 is applied to information on at least one TCI state of the downlink shared channel and the downlink control channel (for example, configuration (configuration) information of the TCI state, information indicating the TCI state to be activated, PDCCH or PDSCH). Or at least one of the information indicating the TCI state of the TCI.
  • FIG. 10 is a diagram showing an example of a functional configuration of the user terminal according to the present embodiment. Note that, in this example, functional blocks of characteristic portions in the present embodiment are mainly shown, and it may be assumed that the user terminal 20 also has other functional blocks necessary for wireless communication.
  • the baseband signal processing unit 204 of the user terminal 20 includes at least a control unit 401, a transmission signal generation unit 402, a mapping unit 403, a reception signal processing unit 404, and a measurement unit 405. Note that these configurations need only be included in the user terminal 20, and some or all of the configurations need not be included in the baseband signal processing unit 204.
  • the control unit 401 controls the entire user terminal 20.
  • the control unit 401 can be configured from a controller, a control circuit, or a control device described based on common recognition in the technical field according to the present disclosure.
  • the control unit 401 controls, for example, signal generation in the transmission signal generation unit 402, signal assignment in the mapping unit 403, and the like. Further, the control unit 401 controls a signal reception process in the reception signal processing unit 404, a signal measurement in the measurement unit 405, and the like.
  • the control unit 401 acquires the downlink control signal and the downlink data signal transmitted from the base station 10 from the reception signal processing unit 404.
  • the control unit 401 controls generation of an uplink control signal and / or an uplink data signal based on a result of determining whether or not retransmission control is required for a downlink control signal and / or a downlink data signal.
  • the control unit 401 controls to form a transmission beam and / or a reception beam using digital BF (for example, precoding) in the baseband signal processing unit 204 and / or analog BF (for example, phase rotation) in the transmission / reception unit 203. May be performed.
  • the control unit 401 may perform control to form a beam based on downlink channel information, uplink channel information, and the like. These propagation path information may be acquired from the reception signal processing unit 404 and / or the measurement unit 405.
  • control unit 401 When the control unit 401 acquires various information notified from the base station 10 from the reception signal processing unit 404, the control unit 401 may update parameters used for control based on the information.
  • the control unit 401 controls the reception of the SSB and the predetermined reference signal based on the QCL relationship between the SSB and the predetermined reference signal and the subcarrier interval. I do. Further, when the QCL relationship and the subcarrier interval between the SSB and the predetermined reference signal are the same, the control unit 401 controls to receive both the SSB and the predetermined reference signal. In addition, when at least one of the QCL relationship and the subcarrier interval between the SSB and the predetermined reference signal is different, the control unit 401 controls to receive one of the SSB and the predetermined reference signal. Further, the control unit 401 controls to select and receive one of the SSB and the predetermined reference signal based on the use of the SSB and the use of the predetermined reference signal.
  • Transmission signal generation section 402 generates an uplink signal (uplink control signal, uplink data signal, uplink reference signal, etc.) based on an instruction from control section 401 and outputs the generated signal to mapping section 403.
  • the transmission signal generation unit 402 can be configured from a signal generator, a signal generation circuit, or a signal generation device described based on common recognition in the technical field according to the present disclosure.
  • the transmission signal generation unit 402 generates an uplink control signal related to acknowledgment information, channel state information (CSI), and the like based on an instruction from the control unit 401, for example. Further, transmission signal generating section 402 generates an uplink data signal based on an instruction from control section 401. For example, the transmission signal generation unit 402 is instructed by the control unit 401 to generate an uplink data signal when the downlink control signal notified from the base station 10 includes a UL grant.
  • CSI channel state information
  • Mapping section 403 maps the uplink signal generated by transmission signal generation section 402 to a radio resource based on an instruction from control section 401, and outputs the result to transmission / reception section 203.
  • the mapping unit 403 can be configured from a mapper, a mapping circuit, or a mapping device described based on common recognition in the technical field according to the present disclosure.
  • the reception signal processing unit 404 performs reception processing (for example, demapping, demodulation, and decoding) on the reception signal input from the transmission / reception unit 203.
  • the received signal is, for example, a downlink signal (a downlink control signal, a downlink data signal, a downlink reference signal, etc.) transmitted from the base station 10.
  • the reception signal processing unit 404 can be configured from a signal processor, a signal processing circuit, or a signal processing device described based on common recognition in the technical field according to the present disclosure.
  • the reception signal processing unit 404 can configure a reception unit according to the present disclosure.
  • the reception signal processing unit 404 outputs the information decoded by the reception processing to the control unit 401.
  • the reception signal processing unit 404 outputs, for example, broadcast information, system information, RRC signaling, DCI, and the like to the control unit 401. Further, the reception signal processing unit 404 outputs the reception signal and / or the signal after the reception processing to the measurement unit 405.
  • the measuring unit 405 measures the received signal. For example, the measurement unit 405 may perform the same frequency measurement and / or the different frequency measurement on one or both of the first carrier and the second carrier. When the serving cell is included in the first carrier, measurement section 405 may perform different frequency measurement on the second carrier based on the measurement instruction acquired from received signal processing section 404.
  • the measurement unit 405 can be configured from a measurement device, a measurement circuit, or a measurement device described based on common recognition in the technical field according to the present disclosure.
  • the measurement unit 405 may perform RRM measurement, CSI measurement, and the like based on the received signal.
  • the measurement unit 405 may measure reception power (for example, RSRP), reception quality (for example, RSRQ, SINR, SNR), signal strength (for example, RSSI), and channel information (for example, CSI).
  • the measurement result may be output to the control unit 401.
  • each functional block is realized by an arbitrary combination of at least one of hardware and software.
  • a method of implementing each functional block is not particularly limited. That is, each functional block may be realized using one device physically or logically coupled, or directly or indirectly (for example, two or more devices physically or logically separated). , Wired, wireless, etc.), and may be implemented using these multiple devices.
  • the base station, the user terminal, and the like according to the present embodiment of the present disclosure may function as a computer that performs processing of the wireless communication method according to the present disclosure.
  • FIG. 11 is a diagram illustrating an example of a hardware configuration of the base station and the user terminal according to the present embodiment.
  • the above-described base station 10 and user terminal 20 may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like. .
  • the term “apparatus” can be read as a circuit, a device, a unit, or the like.
  • the hardware configuration of the base station 10 and the user terminal 20 may be configured to include one or more of the devices illustrated in the drawing, or may be configured to exclude some of the devices.
  • processor 1001 may be implemented by one or more chips.
  • the functions of the base station 10 and the user terminal 20 are performed, for example, by reading predetermined software (program) on hardware such as the processor 1001 and the memory 1002 so that the processor 1001 performs an arithmetic operation and communicates via the communication device 1004. And controlling at least one of reading and writing of data in the memory 1002 and the storage 1003.
  • predetermined software program
  • the processor 1001 performs an arithmetic operation and communicates via the communication device 1004.
  • the processor 1001 controls the entire computer by operating an operating system, for example.
  • the processor 1001 may be configured by a central processing unit (CPU: Central Processing Unit) including an interface with a peripheral device, a control device, an arithmetic device, a register, and the like.
  • CPU Central Processing Unit
  • the above-described baseband signal processing unit 104 (204), call processing unit 105, and the like may be realized by the processor 1001.
  • the processor 1001 reads out a program (program code), a software module, data, and the like from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and executes various processes according to these.
  • a program program code
  • a program that causes a computer to execute at least a part of the operation described in the above embodiment is used.
  • the control unit 401 of the user terminal 20 may be implemented by a control program stored in the memory 1002 and operated by the processor 1001, and other functional blocks may be implemented similarly.
  • the memory 1002 is a computer-readable recording medium, for example, at least one of ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically EPROM), RAM (Random Access Memory), and other appropriate storage media. It may be constituted by one.
  • the memory 1002 may be called a register, a cache, a main memory (main storage device), or the like.
  • the memory 1002 can store a program (program code), a software module, and the like that can be executed to implement the wireless communication method according to the present embodiment of the present disclosure.
  • the storage 1003 is a computer-readable recording medium such as a flexible disk, a floppy (registered trademark) disk, a magneto-optical disk (for example, a compact disk (CD-ROM (Compact Disc) ROM, etc.), a digital versatile disc, At least one of a Blu-ray (registered trademark) disk, a removable disk, a hard disk drive, a smart card, a flash memory device (eg, a card, a stick, a key drive), a magnetic stripe, a database, a server, and other suitable storage media. May be configured.
  • the storage 1003 may be called an auxiliary storage device.
  • the communication device 1004 is hardware (transmission / reception device) for performing communication between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, a network device, a network controller, a network card, a communication module, or the like.
  • the communication device 1004 includes a high-frequency switch, a duplexer, a filter, a frequency synthesizer, and the like, for example, in order to realize at least one of frequency division duplex (FDD: Frequency Division Duplex) and time division duplex (TDD: Time Division Duplex). May be configured.
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • the transmission / reception antenna 101 (201), the amplifier unit 102 (202), the transmission / reception unit 103 (203), the transmission path interface 106, and the like may be realized by the communication device 1004.
  • the input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, and the like) that receives an external input.
  • the output device 1006 is an output device that performs output to the outside (for example, a display, a speaker, an LED (Light Emitting Diode) lamp, and the like). Note that the input device 1005 and the output device 1006 may have an integrated configuration (for example, a touch panel).
  • the devices such as the processor 1001 and the memory 1002 are connected by a bus 1007 for communicating information.
  • the bus 1007 may be configured using a single bus, or may be configured using a different bus for each device.
  • the base station 10 and the user terminal 20 include hardware such as a microprocessor, a digital signal processor (DSP: Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), and an FPGA (Field Programmable Gate Array). It may be configured to include hardware, and some or all of the functional blocks may be realized using the hardware. For example, the processor 1001 may be implemented using at least one of these pieces of hardware.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • PLD Programmable Logic Device
  • FPGA Field Programmable Gate Array
  • the channel and the symbol may be a signal (signaling).
  • the signal may be a message.
  • the reference signal may be abbreviated as RS (Reference Signal), and may be referred to as a pilot, a pilot signal, or the like according to an applied standard.
  • a component carrier (CC: Component Carrier) may be called a cell, a frequency carrier, a carrier frequency, or the like.
  • a radio frame may be configured by one or more periods (frames) in the time domain.
  • the one or more respective periods (frames) forming the radio frame may be referred to as a subframe.
  • a subframe may be configured by one or more slots in the time domain.
  • the subframe may be of a fixed length of time (eg, 1 ms) that does not depend on numerology.
  • the new melology may be a communication parameter applied to at least one of transmission and reception of a certain signal or channel.
  • Numerology includes, for example, subcarrier interval (SCS: SubCarrier @ Spacing), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI: Transmission @ Time @ Interval), number of symbols per TTI, radio frame configuration, transmission and reception.
  • SCS SubCarrier @ Spacing
  • TTI Transmission @ Time @ Interval
  • TTI Transmission @ Time @ Interval
  • radio frame configuration transmission and reception.
  • At least one of a specific filtering process performed by the transceiver in the frequency domain and a specific windowing process performed by the transceiver in the time domain may be indicated.
  • the slot may be configured by one or a plurality of symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbol, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbol, etc.) in the time domain. Further, the slot may be a time unit based on numerology.
  • OFDM Orthogonal Frequency Division Multiplexing
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • Slots may include multiple mini-slots. Each minislot may be constituted by one or more symbols in the time domain. Also, the mini-slot may be called a sub-slot. A minislot may be made up of a smaller number of symbols than slots.
  • a PDSCH (or PUSCH) transmitted in time units larger than minislots may be referred to as PDSCH (PUSCH) mapping type A.
  • a PDSCH (or PUSCH) transmitted using a minislot may be referred to as a PDSCH (PUSCH) mapping type B.
  • Radio frames, subframes, slots, minislots, and symbols all represent time units when transmitting signals.
  • the radio frame, the subframe, the slot, the minislot, and the symbol may have different names corresponding to each. Note that time units such as frames, subframes, slots, minislots, and symbols in the present disclosure may be interchanged with each other.
  • one subframe may be called a transmission time interval (TTI: Transmission @ Time @ Interval)
  • TTI Transmission @ Time @ Interval
  • TTI Transmission Time interval
  • a plurality of consecutive subframes may be called a TTI
  • one slot or one minislot is called a TTI.
  • You may. That is, at least one of the subframe and the TTI may be a subframe (1 ms) in the existing LTE, a period shorter than 1 ms (for example, 1 to 13 symbols), or a period longer than 1 ms. It may be.
  • the unit representing the TTI may be called a slot, a minislot, or the like instead of a subframe.
  • the TTI refers to, for example, a minimum time unit of scheduling in wireless communication.
  • the base station performs scheduling for allocating radio resources (frequency bandwidth, transmission power, and the like that can be used in each user terminal) to each user terminal in TTI units.
  • radio resources frequency bandwidth, transmission power, and the like that can be used in each user terminal
  • the TTI may be a transmission time unit such as a channel-encoded data packet (transport block), a code block, or a code word, or may be a processing unit such as scheduling and link adaptation. Note that when a TTI is given, a time section (for example, the number of symbols) in which a transport block, a code block, a codeword, and the like are actually mapped may be shorter than the TTI.
  • one slot or one minislot is called a TTI
  • one or more TTIs may be the minimum time unit for scheduling. Further, the number of slots (mini-slot number) constituting the minimum time unit of the scheduling may be controlled.
  • a TTI having a time length of 1 ms may be referred to as a normal TTI (TTI in LTE@Rel.8-12), a normal TTI, a long TTI, a normal subframe, a normal subframe, a long subframe, a slot, and the like.
  • a TTI shorter than the normal TTI may be called a shortened TTI, a short TTI, a partial TTI (partial or fractional TTI), a shortened subframe, a short subframe, a minislot, a subslot, a slot, and the like.
  • a long TTI (for example, a normal TTI, a subframe, etc.) may be read as a TTI having a time length exceeding 1 ms, and a short TTI (for example, a shortened TTI, etc.) may be replaced with a TTI shorter than the long TTI and 1 ms
  • the TTI having the above-described TTI length may be replaced with the TTI.
  • a resource block is a resource allocation unit in the time domain and the frequency domain, and may include one or a plurality of continuous subcarriers (subcarriers) in the frequency domain.
  • the number of subcarriers included in the RB may be the same irrespective of the numerology, and may be, for example, 12.
  • the number of subcarriers included in the RB may be determined based on numerology.
  • the RB may include one or more symbols in the time domain, and may have a length of one slot, one minislot, one subframe, or one TTI.
  • One TTI, one subframe, and the like may each be configured by one or a plurality of resource blocks.
  • one or more RBs include a physical resource block (PRB: Physical @ RB), a subcarrier group (SCG: Sub-Carrier @ Group), a resource element group (REG: Resource @ Element @ Group), a PRB pair, an RB pair, and the like. May be called.
  • PRB Physical @ RB
  • SCG Sub-Carrier @ Group
  • REG Resource @ Element @ Group
  • PRB pair an RB pair, and the like. May be called.
  • a resource block may be composed of one or more resource elements (RE: Resource @ Element).
  • RE Resource @ Element
  • one RE may be a radio resource area of one subcarrier and one symbol.
  • a bandwidth part (which may be referred to as a partial bandwidth or the like) may also represent a subset of consecutive common RBs (common @ resource @ blocks) for a certain numerology in a certain carrier. Good.
  • the common RB may be specified by an index of the RB based on the common reference point of the carrier.
  • a PRB may be defined by a BWP and numbered within the BWP.
  • $ BWP may include a BWP for UL (UL @ BWP) and a BWP for DL (DL @ BWP).
  • BWP for a UE, one or more BWPs may be configured in one carrier.
  • At least one of the configured BWPs may be active, and the UE may not have to assume transmitting and receiving a given channel / signal outside the active BWP.
  • “cell”, “carrier”, and the like in the present disclosure may be replaced with “BWP”.
  • the structures of the above-described radio frame, subframe, slot, minislot, symbol, and the like are merely examples.
  • the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, included in an RB The configuration of the number of subcarriers, the number of symbols in the TTI, the symbol length, the cyclic prefix (CP: Cyclic @ Prefix) length, and the like can be variously changed.
  • the information, parameters, and the like described in the present disclosure may be expressed using an absolute value, may be expressed using a relative value from a predetermined value, or may be expressed using another corresponding information. May be represented.
  • a radio resource may be indicated by a predetermined index.
  • Names used for parameters and the like in the present disclosure are not limited in any respect. Further, the formulas and the like using these parameters may be different from those explicitly disclosed in the present disclosure.
  • the various channels (PUCCH (Physical Uplink Control Channel), PDCCH (Physical Downlink Control Channel), etc.) and information elements can be identified by any suitable name, so the various names assigned to these various channels and information elements Is not a limiting name in any way.
  • the information, signals, etc. described in this disclosure may be represented using any of a variety of different technologies.
  • data, instructions, commands, information, signals, bits, symbols, chips, etc. that can be referred to throughout the above description are not limited to voltages, currents, electromagnetic waves, magnetic or magnetic particles, optical or photons, or any of these. May be represented by a combination of
  • information, signals, and the like can be output from the upper layer to at least one of the lower layer and the lower layer to the upper layer.
  • Information, signals, etc. may be input / output via a plurality of network nodes.
  • Information and signals input and output may be stored in a specific place (for example, a memory) or may be managed using a management table. Information and signals that are input and output can be overwritten, updated, or added. The output information, signal, and the like may be deleted. The input information, signal, and the like may be transmitted to another device.
  • Notification of information is not limited to the aspect / embodiment described in the present disclosure, and may be performed using another method.
  • the information is notified by physical layer signaling (for example, downlink control information (DCI: Downlink Control Information), uplink control information (UCI: Uplink Control Information)), upper layer signaling (for example, RRC (Radio Resource Control) signaling, It may be implemented by broadcast information (master information block (MIB: Master Information Block), system information block (SIB: System Information Block), etc.), MAC (Medium Access Control) signaling), other signals, or a combination thereof.
  • DCI Downlink Control Information
  • UCI Uplink Control Information
  • RRC Radio Resource Control
  • MIB Master Information Block
  • SIB System Information Block
  • MAC Medium Access Control
  • the physical layer signaling may be called L1 / L2 (Layer 1 / Layer 2) control information (L1 / L2 control signal), L1 control information (L1 control signal), or the like.
  • the RRC signaling may be referred to as an RRC message, and may be, for example, an RRC connection setup (RRCConnectionSetup) message, an RRC connection reconfiguration (RRCConnectionReconfiguration) message, or the like.
  • the MAC signaling may be notified using, for example, a MAC control element (MAC @ CE (Control @ Element)).
  • the notification of the predetermined information is not limited to an explicit notification, and is implicit (for example, by not performing the notification of the predetermined information or by another information). May be performed).
  • the determination may be made by a value represented by 1 bit (0 or 1), or may be made by a boolean value represented by true or false. , May be performed by comparing numerical values (for example, comparison with a predetermined value).
  • software, instructions, information, and the like may be transmitted and received via a transmission medium.
  • a transmission medium For example, if the software uses at least one of wired technology (coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.) and wireless technology (infrared, microwave, etc.), the website, When transmitted from a server or other remote source, at least one of these wired and / or wireless technologies is included within the definition of a transmission medium.
  • system and “network” as used in this disclosure may be used interchangeably.
  • precoding In the present disclosure, “precoding”, “precoder”, “weight (precoding weight)”, “transmission power”, “phase rotation”, “antenna port”, “layer”, “number of layers”, “rank”, Terms such as “beam”, “beam width”, “beam angle”, “antenna”, “antenna element”, “panel”, etc., may be used interchangeably.
  • base station (BS: Base @ Station)”, “wireless base station”, “fixed station (fixed @ station)”, “NodeB”, “eNodeB (eNB)”, “gNodeB (gNB)”, “gNodeB (gNB)” "Access point (access @ point)”, “transmission point (TP: Transmission @ Point)”, “reception point (RP: Reception @ Point)”, “transmission / reception point (TRP: Transmission / Reception @ Point)”, “panel”, “cell” , “Sector”, “cell group”, “carrier”, “component carrier” and the like may be used interchangeably.
  • a base station may also be referred to as a macro cell, a small cell, a femto cell, a pico cell, or the like.
  • a base station can accommodate one or more (eg, three) cells. If the base station accommodates multiple cells, the entire coverage area of the base station can be partitioned into multiple smaller areas, each smaller area being a base station subsystem (eg, a small indoor base station (RRH: Communication services can also be provided by Remote Radio Head)).
  • a base station subsystem eg, a small indoor base station (RRH: Communication services can also be provided by Remote Radio Head).
  • RRH small indoor base station
  • the term “cell” or “sector” refers to part or all of the coverage area of at least one of a base station and a base station subsystem that provides communication services in this coverage.
  • MS mobile station
  • UE user equipment
  • terminal terminal
  • a mobile station is a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal. , Handset, user agent, mobile client, client or some other suitable terminology.
  • At least one of the base station and the mobile station may be called a transmitting device, a receiving device, or the like.
  • the base station and the mobile station may be a device mounted on the mobile unit, the mobile unit itself, or the like.
  • the moving object may be a vehicle (for example, a car, an airplane, or the like), may be an unmanned moving object (for example, a drone, an autonomous vehicle), or may be a robot (maned or unmanned). ).
  • at least one of the base station and the mobile station includes a device that does not necessarily move during a communication operation.
  • the base station in the present disclosure may be replaced with a user terminal.
  • communication between a base station and a user terminal is replaced with communication between a plurality of user terminals (for example, it may be called D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.).
  • D2D Device-to-Device
  • V2X Vehicle-to-Everything
  • Each aspect / embodiment of the present disclosure may be applied to the configuration.
  • the configuration may be such that the user terminal 20 has the function of the base station 10 described above.
  • words such as “up” and “down” may be read as words corresponding to communication between terminals (for example, “side”).
  • an uplink channel, a downlink channel, and the like may be replaced with a side channel.
  • a user terminal in the present disclosure may be replaced by a base station.
  • a configuration in which the base station 10 has the function of the user terminal 20 described above may be adopted.
  • the operation performed by the base station may be performed by an upper node (upper node) in some cases.
  • various operations performed for communication with a terminal include a base station, one or more network nodes other than the base station (eg, Obviously, it can be performed by MME (Mobility Management Entity), S-GW (Serving-Gateway) or the like, but not limited thereto, or a combination thereof.
  • MME Mobility Management Entity
  • S-GW Serving-Gateway
  • Each aspect / embodiment described in the present disclosure may be used alone, may be used in combination, or may be used by switching with execution.
  • the order of the processing procedure, sequence, flowchart, and the like of each aspect / embodiment described in the present disclosure may be changed as long as there is no inconsistency.
  • elements of various steps are presented in an exemplary order, and are not limited to the specific order presented.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution
  • LTE-B LTE-Beyond
  • SUPER 3G IMT-Advanced
  • 4G 4th generation mobile communication
  • 5G 5th generation mobile communication system
  • FRA Fluture Radio Access
  • New-RAT Radio Access Technology
  • NR New Radio
  • NX New radio access
  • FX Fluture generation radio access
  • GSM Registered trademark
  • CDMA2000 Code Division Multiple Access 2000
  • UMB Ultra Mobile Broadband
  • IEEE 802.11 Wi-Fi (registered trademark)
  • IEEE 802.16 WiMAX (registered trademark)
  • IEEE 802.11 Wi-Fi (registered trademark)
  • IEEE 802.16 WiMAX (registered trademark)
  • IEEE 802.11 Wi-Fi
  • WiMAX registered trademark
  • UWB Ultra-WideBand
  • Bluetooth registered trademark
  • a system using other appropriate wireless communication methods and a next-generation system extended based on these methods.
  • a plurality of systems may be combined (for example, a combination of LTE or LTE-A and 5G) and applied.
  • any reference to elements using designations such as "first,” “second,” etc., as used in this disclosure, does not generally limit the quantity or order of those elements. These designations may be used in the present disclosure as a convenient way to distinguish between two or more elements. Thus, reference to a first and second element does not mean that only two elements can be employed or that the first element must precede the second element in any way.
  • determining means judgment (judging), calculation (computing), processing (processing), deriving (deriving), investing (investigating), searching (looking up) (for example, a table, Searching in a database or another data structure), ascertaining, etc., may be regarded as "deciding".
  • determining includes receiving (eg, receiving information), transmitting (eg, transmitting information), input (input), output (output), and access ( accessing) (e.g., accessing data in a memory) or the like.
  • judgment (decision) is regarded as “judgment (decision)” of resolving, selecting, selecting, establishing, comparing, and the like. Is also good. That is, “judgment (decision)” may be regarded as “judgment (decision)” of any operation.
  • “judgment (decision)” may be read as “assuming”, “expecting”, “considering”, or the like.
  • the “maximum transmission power” described in the present disclosure may mean the maximum value of the transmission power, may mean the nominal maximum transmission power (the nominal UE maximum transmit power), or may refer to the rated maximum transmission power (the rated UE maximum transmit power).
  • connection refers to any direct or indirect connection or coupling between two or more elements. And may include the presence of one or more intermediate elements between two elements “connected” or “coupled” to each other.
  • the coupling or connection between the elements may be physical, logical, or a combination thereof. For example, “connection” may be read as “access”.
  • the radio frequency domain, microwave It can be considered to be “connected” or “coupled” to each other using electromagnetic energy having a wavelength in the region, light (both visible and invisible) regions, and the like.
  • the term “A and B are different” may mean that “A and B are different from each other”.
  • the term may mean that “A and B are different from C”.
  • Terms such as “separate”, “coupled” and the like may be interpreted similarly to "different”.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Afin de commander une opération de réception par un UE de manière appropriée même lorsqu'un bloc de signal synchrone et un signal de référence prescrit se chevauchent dans une ressource temporelle, un terminal d'utilisateur selon un aspect de la présente invention comprend : une unité de réception qui reçoit un bloc de signal synchrone et un signal de référence prescrit ; et une unité de commande qui, lorsque le bloc de signal synchrone et le signal de référence prescrit sont définis dans la même ressource temporelle, commande la réception du bloc de signal synchrone et du signal de référence prescrit en fonction d'une relation de quasi-collocation (QCL) entre le bloc de signal synchrone et le signal de référence prescrit et d'un intervalle de sous-porteuse.
PCT/JP2018/030151 2018-08-10 2018-08-10 Terminal utilisateur et procédé de communication sans fil WO2020031388A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/JP2018/030151 WO2020031388A1 (fr) 2018-08-10 2018-08-10 Terminal utilisateur et procédé de communication sans fil
BR112021002325-9A BR112021002325A2 (pt) 2018-08-10 2018-08-10 terminal de usuário e método de radiocomunicação
EP18929664.3A EP3836668A4 (fr) 2018-08-10 2018-08-10 Terminal utilisateur et procédé de communication sans fil
US17/267,241 US11601903B2 (en) 2018-08-10 2018-08-10 User terminal and radio communication method
JP2020535478A JP7285845B2 (ja) 2018-08-10 2018-08-10 端末、無線通信方法及びシステム
CA3108847A CA3108847A1 (fr) 2018-08-10 2018-08-10 Terminal d'utilisateur et procede de radiocommunication
CN201880098384.1A CN112806077A (zh) 2018-08-10 2018-08-10 用户终端以及无线通信方法

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EP3836668A4 (fr) 2022-03-23
US20210168744A1 (en) 2021-06-03
US11601903B2 (en) 2023-03-07
BR112021002325A2 (pt) 2021-05-04
CA3108847A1 (fr) 2020-02-13
CN112806077A (zh) 2021-05-14
JP7285845B2 (ja) 2023-06-02
JPWO2020031388A1 (ja) 2021-08-02

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